jAlbum didn't invent the lightbox - Lokesh Dhakar did, over 17 years ago. His original lightbox script was quickly joined by others, and today there are dozens of them. Google for
lightbox web design.
At one time or another, the original Lightbox script, Highslide JS, FancyBox, PhotoSwipe, Floatbox, LightGallery, and others, has each formed the basis for one or more jAlbum skins. They're all referred to as "lightbox scripts." Laza writes his own.
jAlbum did, however, invent the "web page" and the "thumbnail."
